Gas-lamp.



4 No. 875,763. PATENTED JAN. 7, 1908.

R. W. ZIERLEIN & W. RIEGHMANN.

GAS LAMP.

APPLIOATION IILED APR.19. 1907.

.IN VENTQRS flu/70rd 6U Z zerlem 0nd M1027 Rz'enhmarm ATTORNEY.

UNITED STATES PATENT OFFICE.

RICHARD W. ZIERLEIN AND WILLIAM RIE OIIMANN, OF ST. LOUIS, MISSOURI, ASSIGNORS, BY

MESNE ASSIGNMENTS, TO PARIS LAMP MANUFACTURING COMPANY, OF ST. LOUIS, MIS- SOURI, A CORPORATION OF MISSOURI.

GAS-LAMP.

Patented Jan. '7, 1908.

Application filed April 19,1907- Serial No. 369,154.

T all whom it may concern:

Be it known that we, RICHARD WV. ZIER- LEIN and WILLIAM RmonMANN, citizens of the United States, residing at St. Louis,

State of Missouri, have invented certain new and useful Improvements in Gas-Lamps, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

Our invention has relation to improvements in gas arc-lamps; and consists in the novel details of construction fully set forth in the specification and pointed out in the claims.

In the drawings, Figure 1 is a half vertical section and half elevation of our improved lamp; Fig. 2 is a horizontal section on the line 22 of Fig. 1; Fig. 3 is a horizontal section on the line 33 of Fig. 1; and Fig. 4 is a horizontal section on the line 4--4L of Fig. l.

The object of our invention is to construct a gas (or vapor-burning) lamp which shall have every appearance of the prevailing type of electric arc-lamp, the lamp employing any well known incandescent mantle as a direct source of light. The high efliciency of our lamp results from the control of the air which is mixed with the gas in its passage to the burner, it being the object of our invention to preheat the air complement of the combustible mixture, so that a perfect combustion is insured, and a consequent saving of gas results.

A further object is to provide special means for creating an upward draft for the burner flame, such draft being formed by a rising current of heated air which thus maintains the flame at the required temperature and insures for the mantle a high degree of incandescence.

The present invention likewise contemplates special details in the matter of supporting the flue or chimney, in the matter of locating the gas-valve, and on the whole offers a lamp possessing advantages which will be clearly apparent from a detailed description of the invention which is as follows:

Referring to the drawings, 1, represents the top or hood of the lamp, the same being provided with a basal flange 2 provided with a series of openings 3 through which the light may pass and thereby reduce the shadow cast by the lamp against the ceiling. The flange 2 is formed into a depending rim 4 which receives the upper lip of a globe 5 preferably of glass, china or equivalent material, said globe being closed at the sides and bottom, and only open at the top. The hood 1 is capped by a spider 6 provided with conveniently shaped brackets 7 to which is secured the annular draftshield or ring 8 which projects partly above and partly below the upper edge of the top of the hood. The spider 6 is provided with a tubular boss or socket 9 through which passes the gaspipe 10 whereby the hood is capable of adjustment along said pipe, and when once adjusted is secured thereto by the clamping screw 11. Located in the pipe 10 above the hood 1 is a valve-casing 12 provided with a cock or rock-valve controlled by the leverarms 13 preferably equipped with a hand chain 14 or pendant as well understood in the art. The lower end of the gaspipe 10 has secured thereto a box or chamber 15 which terminates in tips or nozzles 16 which allow the gas to escape in the form of jets. Im mediately over the box 15 there is screwed to the pipe 10 a casting 17 having an upper annular wall and a tapering lower section as shown, said casting being closed at the bottom, with the exception of the openings formed therein for the reception of the burners or burner-tubes 18 whose upper enlarged heads are covered with. wire gauze 19 as usual.

Adjustable along the pipe 10 is a disk or bracket 20 having terminal lobes 20 for the free passage of the screw-hooks 21, said hooks being suspended by the nuts 22 which upon screwing in. proper direction serve to adjust the position of the hooks, and thus carefully adjust the position of the mantles M suspended therefrom. The bases of the mantles loosely embrace the tops of the burners 18. Leading from a point in the pipe 10 above the hood 1. is a tube 23 which extends in proximity to the mantles and furnishes a pilot llame to the burner as well understood in the art.

The wall of the upper annular portion of the burner-casting 17 is provided with a series of studs, screws, or pins 24 disposed in the same plane, which pass freely through corresponding cut-away portions or lobes 25 excised from a ring or band 26 adapted to be slipped over the casting from the bottom, the ring being subsequently given a slight turn upper edge of the burner-casting 17, so that air may freely ass into the chimney around the mantles. likewise the bottom of the casting 17 is spaced a suitable distance from the tips 16 so as to form a mixing space for the thorough mingling of the air and gas as they are passing upward into the burners 18.

In the operation of the lamp, after the gas has been turned on by proper manipulation of the gas-valve the gas will escape through the tips or nozzles 16 into the mixing space (the open space between the tips and the base of the burner casting 17) where it is joined by its complement of air and the mixture passes into the burners 18. Since the globe 5 is closed on all sides as well as at the bottom, being open only on top, the air is forced to take the path indicated by the feathered arrows, that is to say, it enters the space within the globe and around the chimney through the openings 3 of the flange 2,-

being thus brought in proximity to the chimney 0 whereby it is thoroughly heated, a portion of the heated air mixing with the gas in the mixing space, and another portion passing through the space between the top of the burner casting 17 and base of the chimney into the chimney around the mantles, contributing not only to the necessary upward draft of the lamp, but serving at all times to maintain a current of hot air around the mantles so the latter can not be cooled. In this way the incandescent efliciency of the mantles is insured, being permanently enveloped in a rising current of hot air, and being themselves traversed on the inside by a hot flame.

By making the globe 5 translucent, the lamp will have an appearance similar to an ordinary electric arc lamp. IVhile herein specifically denominated a gas lamp, it is to be understood that it may be a vapor-burner as well.

Having described our invention what we claim is 1. A gas lamp comprising a gas-pipe, a hood secured thereto, a valve in the pipe located above the hood, terminal gas nozzles leading from the pipe below the hood, burners above the nozzles spaced a suitable distance therefrom to form a mixing space, a chimney or flue above the burners having its bottom spaced a suitable distance from the top of the burners, and an outer globe closed and burner, and constraining the air to pass into the space between the flue and globe whereby the same is heated before supplying the burner, and a gas-nozzle spaced a suitable distance below the burner and discharging thereinto, the air within the globe mixing with the gas thus discharged, substantially as set forth.

3. A gas lamp having a bottom burner casting or casing, gas-discharge nozzles located below the same and spaced a suitable distance therefrom, a flue mounted above the casting and having its bottom spaced a suitable distance above the top of the casting and in substantial contiguity with the base of the burner-flame and an enveloping globe for constraining the passage of the air to a path around the outside of the flue whereby the air is heated, a part of the air passing upward into the flue, and a part mixing with the gas jets escaping from the nozzles into the space beneath the burners of the burner-casting, substantially as set forth.

4. A lamp comprising a gas-supply pipe, a hood mounted thereon, a gas-valvein the pipe above the hood, a pendant or chain for manipulating the valve, a hollow chamber at the lower end. of the gas-supply pipe, nozzles terminating the chamber, a casting secured to the pipe a suitable distance above the chamber and provided with open ended burners superposed over the nozzles, means on the casting for supporting a flue, the base of the latterbeing removed a suitable distance above the top of the casting, and a globe secured. to the base of the hood and enveloping the flue, burner casting and terminal chamber of the gas pipe, the globe being open on top and closed at the sides and bottom, the parts operating substantially as and for the purpose set forth.

5. In a gas-lamp, a burner casting having a series of peripheral pins or projections, a ring adapted to be passed over the casting and having excised lobes for the free passage of said pins, a flue, and flue-supporting arms or brackets on the ring, adapted to elevate the bottom of the flue a suitable distance above the upper edge of the casting, the pins serving to support the ring upon a turn of the latter sufficient to bring the excised lobes out of alinement with the pins, substantially as set forth.

6. In a gas lamp, a bottom burner-casting,

means for supporting the casting; a flue superposed thereover and spaced a suitable distance therefrom, means for supporting the flue, a mixing space below the casting, means for supplying gas to said mixing space, and an enveloping globe open at the top and closed at the sides and bottom for directing the air around the flue whereby the same is heated, a portion of the heated air entering the flue through the space between the bottom thereof and the top of the casting, and a portion mixing with the escaping gas entering the mixing space and burners, substantially as set forth.

In testimony whereof we allix our signa- 15 tures, in presence of two witnesses.

RICHARD W. ZIERLEIN.

I W lLLIAh l. RIECHMANN.

l \Vitnesses:

EMIL STAREK, MARY D. WHrrooMB. 

